but the united states has expressed deep concern over move. the policy chief of japan's ruling democratic party is visiting washington. seiji maehara met the u.s. deputy secretary of energy, daniel poneman, to brief him on the draft. the japanese government will take various steps and direct resources to halt all reactors by the 2030s. japan's future energy policy will be based on three principles. the operation of any nuclear plant will be limited to 40 years, suspended facilities will need to have their safety confirmed before they can resume operations, and no new reactors will be built. but the policy insists that nuclear reactors should be used as a transitional measure. maehara said poneman urged japan to minimize the negative impact of the policy on fossil fuel prices. poneman reportedly said japan should try to reduce its stocks of plutonium from spent nuclear fuel. maehara said poneman also told him the u.s. will support japan's efforts to diversify its energy sources. >>> it's hard for the world to really understand what's going on i